Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a366fcbd04d87dd…

MALICIOUS

PDF

33.4 KB Created: 2020-08-11 03:43:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58a9f67d6607437fb1c01fdb89244afd SHA-1: 77e6875ef3c6468c39abcaff3ff948de8f5737ab SHA-256: 9a366fcbd04d87dd5e0d33e43440bc6ad76e94ca24c6f89f11160f2240612972
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One prominent link, 'https://ttraff.com/pify?keyword=cgp+functional+skills+maths+level+2+pdf', is identified as a malicious redirector. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=cgp+functional+skills+maths+level+2+pdf In PDF document text
    • http://files.lldmshakopee.org/uploads/1/3/1/0/131071253/pugot.pdfIn PDF document text
    • http://files.ov4h.com/uploads/1/3/2/8/132814958/2196492.pdfIn PDF document text
    • http://files.monroeyouthcommission.org/uploads/1/3/0/7/130740128/suxopuberuzak.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7301/0840/files/rubibusoruzakogogavavaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0198/4662/files/passive_voice_simple_future_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5286/7494/files/87974977863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9151/5805/files/icao_annex_3_18th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5313/8588/files/78158360461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4992/files/51007761000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3980/7893/files/6142953950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4056/9494/files/fomesusenazemifejunovun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4121/0024/files/61341060367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0380/3808/files/koleted.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/7880/7705/files/education_alternative__madagascar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0773/8019/files/dononegasaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8729/6680/files/ap_stylebook_2014.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000451e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x451E 5636 bytes
SHA-256: 2970486cb444d8fa57bb09ca435415867f625fc165e3fc4cd923f926f51c6dec
font_01_sfnt_off0000582e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x582E 9460 bytes
SHA-256: 865ba7e4d3b29679bc105729dee054e41e2b303befdc01edc1dd5116163c48aa

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